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| 1 | Kinematics and Dynamics Hessian Matrices of Manipulators Based on Screw Theory显示文摘The complexity of the kinematics and dynamics of a manipulator makes it necessary to simplify the modeling process.However,the traditional representations cannot achieve this because of the absence of coordinate invariance.Therefore,the coordinate invariant method is an important research issue.First,the rigid-body acceleration,the time derivative of the twist,is proved to be a screw,and its physical meaning is explained.Based on the twist and the rigid-body acceleration,the acceleration of the end-effector is expressed as a linear-bilinear form,and the kinematics Hessian matrix of the manipulator(represented by Lie bracket)is deduced.Further,Newton-Euler's equation is rewritten as a linear-bilinear form,from which the dynamics Hessian matrix of a rigid body is obtained.The formulae and the dynamics Hessian matrix are proved to be coordinate invariant.Referring to the principle of virtual work,the dynamics Hessian matrix of the parallel manipulator is gotten and the detailed dynamic model is derived.An index of dynamical coupling based on dynamics Hessian matrix is presented.In the end,a foldable parallel manipulator is taken as an example to validate the deduced kinematics and dynamics formulae.The screw theory based method can simplify the kinematics and dynamics of a manipulator,also the corresponding dynamics Hessian matrix can be used to evaluate the dynamical coupling of a manipulator. | ZHAO Tieshi GENG Mingchao CHEN Yuhang LI Erwei YANG Jiantao | 2015 | Chinese Journal of Mechanical Engineering2015，28，2： | 22 |
| 2 | 3D integrated modeling approach to geo-engineering objects of hydraulic and hydroelectric projects显示文摘Aiming at 3D modeling and analyzing problems of hydraulic and hydroelectric en-gineering geology,a complete scheme of solution is presented. The first basis was NURBS-TIN-BRep hybrid data structure. Then,according to the classified thought of the object-oriented technique,the different 3D models of geological and engi-neering objects were realized based on the data structure,including terrain class,strata class,fault class,and limit class;and the modeling mechanism was alterna-tive. Finally,the 3D integrated model was established by Boolean operations be-tween 3D geological objects and engineering objects. On the basis of the 3D model,a series of applied analysis techniques of hydraulic and hydroelectric engineering geology were illustrated. They include the visual modeling of rock-mass quality classification,the arbitrary slicing analysis of the 3D model,the geological analysis of the dam,and underground engineering. They provide powerful theoretical prin-ciples and technical measures for analyzing the geological problems encountered in hydraulic and hydroelectric engineering under complex geological conditions. | ZHONG DengHua LI MingChao LIU Jie | 2007 | Science China(Technological Sciences)2007，50，3： | 20 |
| 3 | CifNet Network Multi-Well Data Management System显示文摘The CifNet network multi-well data management system is developed for 100MB or 1000MB local network environments which are used in Chinese oil industry. The kernel techniques of CifNet system include: 1, establishing a high efficient and low cost network multi-well data management architecture based on the General Logging Curve Theory and the Cif data format; 2, implementing efficient visit and transmission of multi-well data in C/S local network based on TCP/IP protocol; 3,ensuring the safety of multi-well data in store, visit and application based on Unix operating system security. By using CifNet system, the researcher in office or at home can visit curves of any borehole in any working area of any oilfield. The application foreground of CifNet system is also commented. | LiNing Mingchao CuiJian WangJianqiang WangCaizhi | 2004 | Applied Geophysics2004，1，2： | 11 |
| 4 | NURBS reconstruction of digital terrain for hydropower engineering based on TIN model显示文摘数字地面模型(DTM ) 在 3D 设计,视觉分析和 3D 在大规模水力发出的电力工程的地质的建模起了一个重要作用。作为 3D 可视化的枢轴的基地并且建模, DTM 应该被高精确,更少的存储和井交流在图形的操作期间描绘。考虑数据来源的差异并且利用二数据结构, triangulated 不规则的网络(锡) 和不一致的合理 B 花键(NURBS ) ,新奇方法论为重建设计水力发出的电力的地面被介绍工程。与多来源数据的集成,提高了 Delaunay 算法被介绍重建 TIN DTM,它是在锡和复杂地形学,但是在低记忆的效率的忠诚描写的地面表面。基于 TIN 模型,使用扫描采样和线性插值的节,从分离、不规则、多样的数据的转变到连续、常规的采样代表性的曲线顺序,被认识到。采样数据的适当压缩也被强加为保证下列重建工作被表现。最后,采用 NURBS 技术和 skinning 方法, NURBS DTM,它代表 NURBS 表面并且在精确以后满足要求与加权的错误估计,与中间的数据被重建。同时,有另一成就,地面数据,从采样数据的从起始的数据的数据和其它的二个数据库,为重复被建立有不同要求的有能力的重建。用介绍方法的成功的申请,一个稳定的基础为设计地质的建模,视觉设计和水力发出的电力工程的分析的 3D 被打。 | Denghua Zhong Jie Liu Mingchao Li Caiwei Hao | 2008 | Progress in Natural Science:Materials International2008，18，11： | 11 |
| 5 | Superelastic wire-shaped supercapacitor sustaining 850% tensile strain based on carbon nanotube@graphene fiber显示文摘 | Huimin Wang Chunya Wang Muqiang Jian Qi Wang Kailun Xia Zhe Yin Mingchao Zhang Xiaoping Liang Yingying Zhang | 2018 | Nano Research2018，11，5： | 6 |
| 6 | Physical sensors for skin-inspired electronics显示文摘Skin,the largest organ in the human body,is sensitive to external stimuli.In recent years,an increasing number of skin-inspired electronics,including wearable electronics,implantable electronics,and electronic skin,have been developed because of their broad applications in healthcare and robotics.Physical sensors are one of the key building blocks of skin-inspired electronics.Typical physical sensors include mechanical sensors,temperature sensors,humidity sensors,electrophysiological sensors,and so on.In this review,we systematically review the latest advances of skin-inspired mechanical sensors,temperature sensors,and humidity sensors.The working mechanisms,key materials,device structures,and performance of various physical sensors are summarized and discussed in detail.Their applications in health monitoring,human disease diagnosis and treatment,and intelligent robots are reviewed.In addition,several novel properties of skin-inspired physical sensors such as versatility,self-healability,and implantability are introduced.Finally,the existing challenges and future perspectives of physical sensors for practical applications are discussed and proposed. | Shuo Li Yong Zhang Yiliang Wang Kailun Xia Zhe Yin Huimin Wang Mingchao Zhang Xiaoping Liang Haojie Lu Mengjia Zhu Haomin Wang Xinyi Shen Yingying Zhang | 2020 | InfoMat2020，2，1： | 5 |
| 7 | The effect of different layered materials on the tribological properties of PTFE composites显示文摘Two-dimensional(2D)lamellar materials have unique molecular structures and mechanical properties,among which molybdenum disulfide(MoS2)and graphitic carbon nitride(g-C3N4)with different interaction forces served as reinforcing phase for polytetrafluoroethylene(PTFE)composites in the present study.Thermal stability,tribological and thermomechanical properties of composites were comprehensively investigated.It was demonstrated that g-C3N4 improved elastic deformation resistance and thermal degradation characteristics.The addition of g-C3N4 significantly enhanced anti-wear performance under different loads and speeds.The results indicated that PTFE composites reinforced by g-C3N4 were provided with better properties because the bonding strength of g-C3N4 derived from hydrogen bonds(H-bonds)was stronger than that of MoS2 with van der Waals force.Consequently,g-C3N4 exhibited better thermomechanical and tribological properties.The result of this work is expected to provide a new kind of functional filler for enhancing the tribological properties of polymer composites. | Song LI Chunjian DUAN Xiao LI Mingchao SHAO Chunhui QU Di ZHANG Qihua WANG Tingmei WANG Xinrui ZHANG | 2020 | Friction2020，8，3： | 5 |
| 8 | Growth of alumina oxide nanowires in an aluminum anodization process显示文摘Alumina oxide nanowires were grown via a two-step anodization of aluminum foil. A growth mechanism is proposed for these nanowires which is different from that of those formed using chemical etching methods. An electric field and stress are necessary to grow these nanowires, and the nano-imprinted metal surface of the aluminum foil has an important role. | ZHU KaiGui CHENG JingRan CHANG MingChao WANG Wu WEI WenBo GE GuangLu | 2011 | Chinese Science Bulletin2011，56，18： | 4 |
| 9 | Review:Progress in SQUID⁃Based Geophysical Precision Measurement Technology显示文摘Superconducting quantum interference device(SQUID),with the advantages of ultra⁃high sensitivity,low noise,broad frequency bandwidth,and excellent low⁃frequency response,is widely used in several geophysical methods,such as vector magnetic survey,electromagnetic method,gravity and gravity gradient measurement.In this paper,the latest technological progress of SQUID and SQUID⁃based geophysical precision measurement technology are described.In addition,the advantages,characteristics,and existing problems of each measurement technology are analyzed.Combined with the requirements of current geophysical technology,the future application prospect is discussed and development suggestions are given. | Jun Lin Mingchao Wang Jing Zhao | 2020 | Journal of Harbin Institute of Technology(New Series)2020，27，3： | 4 |
| 10 | Dynamic simulation and optimization approach to construction diversion of hydraulic and hydroelectric projects显示文摘To solve the engineering and scientific problems in construction diversion and its simulation analysis, a complete scheme is presented. Firstly, the complex constraint relationship was analyzed among main buildings, diversion buildings and flow control. Secondly, the time-space relationship model of construction diversion system and the general block diagram-oriented simulation model of diversion process were set up. Then, the corresponding numerical simulation method and 3D dynamic visual simulation method were put forward. Further, the simulation and optimization platform of construction diversion control process was developed, integrated with simulation modeling, computation and visualization. Finally, these methods were applied to a practical project successfully, showing that the modeling process is convenient, the computation and the visual analysis can be coupled effectively, and the results conform to practical state. They provide new theoretical principles and technical measures for analyzing the control problems encountered in construction diversion of hydraulic and hydroelectric engineering under complex conditions. | ZHONG DengHua LI MingChao HUANG Wei LIU Yong | 2009 | Science China(Technological Sciences)2009，52，7： | 4 |
| 11 | Entanglement in a two-spin (1/2,3/2) mixed-spin Heisenberg XX chain with an inhomogeneous external magnetic field显示文摘By using the concept of negativity, we investigate the thermal entanglement of a two-spin (1/2, 3/2) mixed-spin Heisenberg XX chain with an inhomogeneous external magnetic field. We obtain the analytical results of entanglement of this model. For the case of uniform magnetic field, we find that the critical temperature is higher than the results of the spin-1/2 chain and (1/2,1) mixed-spin chain. And by adjusting the nonuniform parameter b, one is able to obtain more entanglement at a higher temperature. | GUO KeTao LIANG MingChao XU HongYu ZHU ChengBo | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，3： | 4 |
| 12 | Inadvertent insertion of nephrostomy tube into the renal vein following percutaneous nephrolithotomy: A case report and literature review显示文摘Percutaneous nephrolithotomy(PCNL)is an effective and well accepted procedure for the treatment of large and complex renal calculi.We encountered a patient with a mis-placed percutaneous nephrostomy drainage tube(PNDT)into the contralateral renal vein re-sulting thrombus formation after undergoing right side PCNL.We placed a temporary filter to prevent embolism and started anti-coagulation therapy immediately and finally the PNDT was removed without bleeding. | Guangju Ge Zhenghui Wang Mingchao Wang Gonghui Li Zuhao Xu Yukun Wang Shawpong Wan | 2020 | Asian Journal of Urology2020，7，1： | 3 |
| 13 | Exploring the friction and wear behaviors of Ag–Mo hybrid modified thermosetting polyimide composites at high tem-perature显示文摘Polyimide composites have been extensively used as motion components under extreme conditions for their thermal stability and special self-lubricating performance. In the present study, Ag–Mo hybrids as lubricant fillers were incorporated into thermosetting polyimide to prepare a new type of tribo-materials (TPI-1) at high temperature. Comprehensive investigations at different temperatures reveal that the newly developed TPI-1 exhibits a better reduction in friction and wear rate below 100 ℃, but all of them increase significantly when the bulk temperature exceeds 250℃. The wear mechanisms demonstrated that sandwich-like tribofilms with different layers were established at different temperatures, which was further verified by characterization of scanning electron microscope (SEM), Raman spectroscopy, and transmission electron microscope (TEM). Considering the high-performance TPI coupled with Ag–Mo hybrids, we anticipate that further exploration would provide guidance for designing TPI tribo-materials that would be used at high temperatures. | Chunjian DUAN Ren HE Song LI Mingchao SHAO Rui YANG Liming TAO Chao WANG Ping YUAN Tingmei WANG Qihua WANG | 2020 | Friction2020，8，5： | 3 |
| 14 | Detection of composition of functional component theabrownins in Pu-erh tea by degradation method显示文摘Habitual tea consumption can reduce the risk of ASCVD morbidity and mortality and all-cause mortality in China,and long-term adherence to this habit can provide greater protection.Pu-erh tea is one of the representatives of post-fermented teas,and the polymers in Pu-erh tea have anti-cancer and anti-hyperlipidemic activities,but their chemical composition is still unknown.In this study,the chemical composition of Pu-erh tea was investigated in detail and eight(1–8)known compounds were isolated.The polymers in Pu-erh tea were also degraded by thiol degradation,and the fragments of quercetin and(–)-epicatechin-3-O-gallate were found in the thiol degradation products of Pu-erh tea polymers by UPLC observation and separation and purification.This is the first time that this fragment was obtained in Pu-erh tea polymer. | Simin Hu Xiaolei Li Chuangchuang Gao Xianyu Meng Mingchao Li Yuqian Li Tianrui Xu Qian Hao | 2022 | Food Science and Human Wellness2022，11，3： | 3 |
| 15 | Tectonic discrimination of olivine in basalt using data mining techniques based on major elements:a comparative study from multiple perspectives显示文摘The olivine in basalt records much information about formation and evolution of basaltic magma,which may help to discriminate basalt tectonic settings.However,the viewpoint that olivine is connected with the tectonic setting where it formed is controversial.To verify the hypothesis,we intend to discriminate the basalt tectonic settings by geochemical characteristics of olivine.The data mining technique is selected as an effective tool for this study,which is a new attempt in geochemical research.The geochemical data of olivine used is extracted from open-access and comprehensive petrological databases.The classification performance of Logistic regression classifier,Naïve Bayes,Random Forest and Multi-layer perception(MLP)algorithms is firstly compared under some constraints.The results of the basic experiment indicate that MLP has the highest classification accuracy of about 88%based on raw data,followed by Random Forest.But this does not fully prove the hypothesis is credible.Then,the crossvalidation method and other measurement criteria are integrated for scientific and in-depth comparative analysis.The advanced experiments mainly include the comparison of different data preprocessing methods,combinations of geochemical characteristics and sample data volumes.It turns out that chemical composition of olivine in basalt has the function of discriminating tectonic settings. | Qiubing Ren Mingchao Li Shuai Han | 2019 | Big Earth Data2019，3，1： | 2 |
| 16 | Paratesticular fibrous pseudotumor: a report of five cases and literature review显示文摘Paratesticular 含纤维的 pseudotumor 是从 intrascrotal 织物发源的一个稀罕良性的肿瘤,例如 tunica vaginalis, epididymis,或精索。我们的医院里的含纤维的 pseudotumor 的五个案例回顾地被考察,并且临床的表明被分析。单方的小瘤,大小写在 tunica vaginalis 定位了的包括的小瘤和二个案例的三个案例在 epididymis 定位了,经历了单方的小瘤的本地切除。在 tunica vaginalis 的弥漫的增厚的二个案例经历了恰好激进的 orchiectomy。手术后的病理学的检查证明所有是含纤维的 pseudotumors。没有复发, 26 个月的平均后续为所有病人显示出平静结果。含纤维的 pseudotumor 不是一个瘤但是反应含纤维的煽动性的增生。权威的诊断要求病理学的检查。当因为潜在的恶意的明显的证据的缺乏,可能、本地的切除应该被执行时,激进的 orchiectomy 应该被避免。 | Zhicheng Zhang Jun Yang Mingchao Li Wei Cai Qingquan Liu Tao Wang Xiaolin Guo ShaogangWang Jihong Liu ZhangqunYe | 2014 | Frontiers of Medicine2014，8，4： | 2 |
| 17 | Surface functionalization on the thermal conductivity of graphene-polymer nanocomposites显示文摘Exploring thermal transport in graphene-polymer nanocomposite is significant to its applications with better thermal properties.Interfacial thermal conductance between graphene and polymer matrix plays a critical role in the improvement of thermal conductivity of graphene-polymer nanocomposite.Unfortunately,it is still challenging to understand the interfacial thermal transport between graphene nanofiller and polymer matrix at small material length scale.To this end,using nonequilibrium molecular dynamics(NEMD)simulations,we investigate the interfacial thermal conductance of graphene-polyethylene(PE)nanocomposite.The influence of functionalization with hydrocarbon chains on the interfacial thermal conductance of graphene-polymer nanocomposites was studied,taking into account the effects of model size and thermal conductivity of graphene.An analytical model is also used to calculate the thermal conductivity of nanocomposite.The results are considered to contribute to the development of new graphene-polymer nanocomposites with tailored thermal properties. | Mingchao Wang Dilini Galpaya Zheng Bo Lai Yanan Xu Cheng Yan | 2014 | International Journal of Smart and Nano Materials2014，5，2： | 2 |
| 18 | A robust output-feedback adaptive dynamic surface control for linear systems with input disturbance显示文摘In this paper, a robust output-feedback adaptive control is proposed for linear time-invariant (LTI) single-input single-output (SISO) plants with unmeasurable input disturbance. Using dynamic surface control (DSC) technique, it is shown that the explosion of complexity problem in backstepping control can be eliminated. Furthermore, the proposed adaptive DSC scheme has the following merits: 1) by introducing an initialization technique, the L ∞ performance of system tracking error can be guaranteed even if the plant high-frequency gain is unknown and the input disturbance exists, and 2) the adaptive law is necessary only at the first design step, which significantly reduces the design procedure. It is proved that with the proposed scheme, all the closed-loop signals are semiglobally uniformly ultimately bounded. Simulation results are presented to demonstrate the effectiveness of the proposed scheme. | Mingchao SONG Yan LIN | 2013 | 控制理论与应用(英文版)2013，11，2： | 2 |
| 19 | Ultra-sensitive and wide applicable strain sensor enabled by carbon nanofibers with dual alignment for human machine interfaces显示文摘Flexible strain sensors with high sensitivity,wide detection range,and low detection limit have continuously attracted great interest due to their tremendous application potential in areas such as health/medical-care,human-machine interface,as well as safety and security.While both of a high sensitivity and a wide working range are desired key parameters for a strain sensor,they are usually contrary to each other to be achieved on the same sensor due to the tightly structure dependence of both of them.Here,a flexible strain sensor with both high sensitivity and wide strain detection range is prepared based on the design of an integrated membrane containing both of parallel aligned and randomly aligned carbon nanofibers(CNFs).The parallel aligned CNF membrane(p-CNF)exhibits a low strain detection limit and high sensitivity,while the random aligned CNF membrane(r-CNF)exhibits a large strain detection range.Taking the advantages of both p-CNF and r-CNF,the strain sensor with stacked p-CNF and r-CNF(p/r-CNF)exhibits both high sensitivity and wide working range.Its gauge factor(GF)is 1,272 for strains under 0.5%and 2,266 for strain from 70%to 100%.At the same time,it can work in a wide strain range of 0.005%to 100%,fulfilling the requirements for accurately detecting full-range human motions.We demonstrated its applications in the recognition of facial expressions and joint movements.Furtherly,we constructed an intelligent lip-language recognition system,which can accurately track phonetic symbols and may help people with language disabilities,proving the potential of this strain sensor in health management and medical assistance.Besides,we foresee that the dual-alignment structure design of the p/r-CNF strain sensor may also be applied in the design of other high performance sensors. | Peng Bi Mingchao Zhang Shuo Li Haojie Lu Haomin Wang Xiaoping Liang Huarun Liang Yingying Zhang | 2023 | Nano Research2023，16，3： | 2 |
| 20 | Silkworm Silk Fibers with Multiple Reinforced Properties Obtained through Feeding Ag Nanowires显示文摘Silkworm silk fbers have been woven into textiles for thousands of years,because of their attractive luster,good mechanical properties,excellent biocompatibility,and large-scale production.With the development of human society,preparation of silk fbers with modifed or enhanced properties are highly desirable for potential applications in structural materials and smart textiles.Herein,we realized the reinforcement of multiple properties of silk fbers by feeding silkworms with Ag nanowire(Ag NW)modifed diets.The obtained silk fbers show obviously enhanced comprehensive mechanical properties,including improved tensile strength,elongation at break,tensile modulus,and toughness,which are increased by 37.2%,37.6%,68.3%,and 69.8%,respectively.Furthermore,compared with unmodifed silk,the electrical conductivity and thermal conductivity of modifed silk fbers are improved by 246.4%and 32.1%,respectively.The analysis on the components and structure shows that the incorporated Ag NWs lead to increased content of random coil/α-helix,improved orientation of crystallites,and increased content of Ag compared to pristine silk fbers,which may contribute to the enhanced mechanical,electrical,and thermal properties. | Haojie Lu Muqiang Jian Zhe Yin Kailun Xia Shaoyi Shi Mingchao Zhang Huimin Wang Xiaoping Liang Weigang Ma Xing Zhang Yingying Zhang | 2022 | Advanced Fiber Materials2022，4，3： | 2 |
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